Steam cooling system for a gas turbine
    2.
    发明授权
    Steam cooling system for a gas turbine 失效
    燃气轮机的蒸汽冷却系统

    公开(公告)号:US06464461B2

    公开(公告)日:2002-10-15

    申请号:US09731982

    申请日:2000-12-08

    IPC分类号: F01D508

    摘要: The steam cooling circuit for a gas turbine includes a bore tube assembly supplying steam to circumferentially spaced radial tubes coupled to supply elbows for transitioning the radial steam flow in an axial direction along steam supply tubes adjacent the rim of the rotor. The supply tubes supply steam to circumferentially spaced manifold segments located on the aft side of the 1-2 spacer for supplying steam to the buckets of the first and second stages. Spent return steam from these buckets flows to a plurality of circumferentially spaced return manifold segments disposed on the forward face of the 1-2 spacer. Crossover tubes couple the steam supply from the steam supply manifold segments through the 1-2 spacer to the buckets of the first stage. Crossover tubes through the 1-2 spacer also return steam from the buckets of the second stage to the return manifold segments. Axially extending return tubes convey spent cooling steam from the return manifold segments to radial tubes via return elbows.

    摘要翻译: 用于燃气涡轮机的蒸汽冷却回路包括孔管组件,其将周向间隔开的径向管供给蒸汽,所述径向管连接到供应弯头,以沿着与沿转子边缘的蒸汽供应管沿轴向方向转换径向蒸汽流。 供应管将位于1-2间隔物的后侧的周向隔开的歧管段供应蒸汽,以将蒸汽供应到第一和第二级的桶。 来自这些铲斗的废水返回蒸汽流向设置在1-2间隔物的前表面上的多个周向间隔开的返回歧管段。 交叉管将来自蒸汽供应歧管段的蒸汽供应通过1-2间隔件连接到第一级的桶。 通过1-2间隔物的交叉管还将蒸汽从第二级的桶返回到回流歧管段。 轴向延伸的回流管通过返回弯头将废冷却蒸汽从返回歧管段传送到径向管。